Automatic assembling and dynamic performance testing equipment for constant-speed driving shaft

Abstract

The invention relates to the technical field of constant-speed driving shaft assembling, and discloses automatic assembling and dynamic performance testing equipment for a constant-speed driving shaft, and the equipment comprises an assembling table which is used for providing an assembling plane for parts in the constant-speed driving shaft; the manipulator is arranged on the assembly table and is used for carrying the bell-shaped shell and the cylindrical shell; the assembling unit is located on the assembling table and used for assembling the three-fork bearing in the bell housing; the clamping unit is mounted on the assembly table and used for clamping and limiting the cylindrical shell; the downward pressing mechanism is connected with the assembling table and used for pressing the bell-shaped shell into the cylindrical shell; through the arrangement of the purging part, the purging part comprises at least three working modes, so that the clearance can be purged, then the impurity removal work is completed, and negative pressure can be applied to the air inlet end, so that the impurities can be adsorbed, and the impurity collection work is completed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of constant velocity drive shaft assembly, in particular to the automatic assembly and dynamic performance testing equipment of constant velocity drive shaft. BACKGROUND

[0002] The ball cage of the drive shaft usually includes a bell-shaped shell, a retainer, a star-shaped sleeve, steel balls, a rubber sleeve, and a transmission shaft, etc. When assembling the ball cage of the drive shaft, the assembly of the steel balls into the bell-shaped shell, the retainer and the star-shaped sleeve is usually performed manually, which results in slow assembly efficiency.

[0003] A constant velocity drive shaft moving joint assembly machine is disclosed in Chinese patent CN109894845A, which comprises a main shell, a positioning body coaxial with the main shell, a support body, and a protective shell. The support body is located inside the main shell and below the positioning body. The protective shell is located above the main shell. The positioning body includes an upper cylinder and a lower cylinder. The upper cylinder passes through the circular hole at the upper end of the main shell, and the lower cylinder is located inside the main shell. A spring is sleeved on the outer wall of the upper cylinder. A shaft hole is formed in the center of the positioning body, and a precision lead screw is installed in the shaft hole.

[0004] However, the above patent application still has some problems. The three-prong bearing and the bell-shaped shell used in the assembly of the constant velocity drive shaft in the above patent are completely new structures, so there is no impurity problem during assembly. However, the existing constant velocity drive shaft can be reused. During assembly, the old constant velocity drive shaft can be disassembled, and the three-prong bearing and the bell-shaped shell in the constant velocity drive shaft can be cleaned. Then, the old constant velocity drive shaft can be completed by replacing or re-adding lubricating oil. However, since the old three-prong bearing and the bell-shaped shell are used, impurities may exist in the three-prong bearing and the bell-shaped shell, which may cause the impurities to be located between the three-prong bearing and the bell-shaped shell during assembly of the three-prong bearing, resulting in the failure of the assembly work.

[0005] Therefore, how to clean the impurities in the three-prong bearing and the bell-shaped shell is a problem to be solved at present. SUMMARY

[0006] The present application provides an automatic assembly and dynamic performance testing equipment for constant velocity drive shafts to solve the above problems in the prior art.

[0007] The automatic assembly equipment for constant velocity drive shafts comprises:

[0008] An assembly table is used to provide an assembly plane for the components of the constant velocity drive shaft.

[0009] A manipulator, arranged on an assembly table, for handling bell-shaped and cylindrical shells;

[0010] an assembly unit, located on the assembly table, for assembling the tripod bearing in the bell housing;

[0011] A clamping unit, mounted on the assembly table, for clamping and limiting the cylindrical shell;

[0012] a pressing mechanism connected to the assembly platform and used to press the bell-shaped housing into the cylindrical housing;

[0013] The bell housing and cylindrical housing are placed in predetermined positions by different manipulators, the tripod bearing is assembled in the bell housing by the assembly unit, and the assembled parts are placed in the cylindrical housing by the manipulator. Finally, the installation of the bell housing and cylindrical housing is completed by the pressing mechanism.

[0014] Furthermore, the assembly unit includes an adjustment component fixedly mounted on the assembly table, a plurality of pressing components arranged on the adjustment component, and a purge component symmetrically arranged on the adjustment component;

[0015] The purge assembly includes a base fixedly connected to the adjustment assembly, a pop-up motor fixedly connected to the base, a spiral rod connected to the output end of the pop-up motor, a propulsion plate slidably connected to the base, a torsion spring for connecting the propulsion plate and one end of the spiral rod, and a purge portion provided on the spiral rod;

[0016] Through the operation of the pop-up motor, the spiral rod pops out of the base, the purge area of ​​the purge part is adjusted, and the propulsion plate is pushed out so that the propulsion plate is located between the top of the tripod bearing and the lower surface of the top of the mounting shaft in the bell housing, which is convenient for the installation of the retaining spring.

[0017] Furthermore, the adjustment component includes a fixed seat and a limit seat fixedly mounted on the assembly table, an adjustment motor fixedly mounted on the fixed seat, a bidirectional screw rod connected to the output end of the adjustment motor, an adjustment member sleeved on the bidirectional screw rod, a slide rail fixedly mounted on the fixed seat, a slider slidably connected to the slide rail, and an adjustment seat for connecting the slider and the adjustment member.

[0018] Furthermore, the adjustment assembly further includes a plurality of limiting wheels provided on one of the adjustment seats, a limiting motor fixedly mounted on the other adjustment seat, a main gear connected to the output end of the limiting motor, a rotating shaft provided on the other adjustment seat, at least two driven wheels sleeved on the rotating shaft, and a driven gear located between the two driven wheels and sleeved on the rotating shaft;

[0019] The main gear is meshed with the driven gear.

[0020] Further, the lower pressing assembly comprises a support frame fixedly installed on the assembly table, a lifting cylinder, a mounting seat for connecting the lifting cylinder and the support frame, a lifting block arranged at an output end of the lifting cylinder, a connecting plate connected with the lifting block, a lifting frame and a sleeve pipe connected with the connecting plate and sleeved on the support frame, a rotating shaft connected with the lifting frame, a lower pressing block connected with the rotating shaft, and a guide shaft arranged on the mounting seat and located in the sleeve pipe;

[0021] The sleeve pipe is provided with a guide block, the rotating shaft is provided with a sliding groove in the circumferential direction, the guide block is located in the sliding groove, and the sliding groove has a Z-shaped structure.

[0022] By moving the sleeve pipe in the axial direction of the guide shaft, the position of the guide block in the sliding groove is changed, so that the lower pressing block can approach or move away from the mounting seat while rotating.

[0023] Further, the blowing part comprises a housing fixedly installed on the screw rod, a reversing motor fixedly connected with the housing, a drive cam arranged at an output end of the reversing motor, a drive block located on the drive cam, an air inlet arranged on the housing, an air outlet installed on the housing, and a flow cutting piece for connecting the air outlet and the air inlet.

[0024] Further, the flow cutting piece comprises an H-shaped chamber opened in the housing, a first adjusting rod and a second adjusting rod located in the H-shaped chamber, a sealing block arranged at one end of the first adjusting rod, a return spring connected with the sealing block, a connecting spring connected with an output end of the second adjusting rod, a drive seat connected with the other end of the connecting spring, and a sealing ball connected with the drive seat.

[0025] The other end of the return spring abuts against one of the air outlets, the first adjusting rod can abut against the drive block, and one end of the second adjusting rod can abut against the drive cam.

[0026] The H-shaped chamber is in communication with the air inlet and the air outlet, respectively.

[0027] Further, the clamping unit comprises a clamping seat fixedly installed on the assembly table, a clamping motor fixedly connected with the clamping seat, a limiting rod connected with an output end of the clamping motor, a first abutting wheel arranged at one end of the limiting rod, a limiting arm movably connected with the clamping seat, two movable wheels respectively arranged on the limiting arm, two first sleeves installed on the limiting rod, a pull plate movably connected with the clamping seat, and a second sleeve arranged on the limiting arm.

[0028] The pull plate is provided with an arc-shaped hole and a waist-shaped hole, the first sleeve is located in the arc-shaped hole, the second sleeve is located in the waist-shaped hole, and the length of the waist-shaped hole is greater than the diameter of the second sleeve;

[0029] The limiting rod is a cross-shaped structure, and a shoulder portion thereof has a predetermined inclined surface, wherein one of the movable wheels abuts against the inclined surface.

[0030] A dynamic performance testing device for a constant velocity drive shaft, comprising a torque detection device, a first power source, a second power source, and a torque sensor disposed on the torque detection device, and a source switching unit located on the torque detection device and between the first power source, the second power source, and the torque sensor;

[0031] It also includes a constant velocity drive shaft, and the torque detection device is used for detecting the constant velocity drive shaft.

[0032] Furthermore, the source changing unit includes a detection seat fixedly mounted on the torque detection device, a driving gear respectively mounted on the first power source and the second power source, an output shaft movably connected to the detection seat, an arc track fixedly mounted on the detection seat, a limit shaft fixedly mounted on the detection seat, a movable seat mounted on the output shaft and slidably connected to the detection seat, a swing arm movably connected to the detection seat, a support block fixedly mounted on the movable seat, and a locking rod provided on the swing arm;

[0033] A movable hole is provided on the swing arm, and the support block is located in the movable hole;

[0034] The movable seat is connected to the output shaft via a spline; a limiting hole is provided on the arc track;

[0035] The movable seat is also provided with a movable gear, and the position of the movable gear in the axial direction of the output shaft is adjusted by the movement of the swing arm so that the movable gear is engaged with different driving gears to complete torque detection.

[0036] Beneficial effects: The present invention discloses an automated assembly and dynamic performance testing device for a constant velocity drive shaft, in order to complete the cleaning of impurities in the tripod bearing and the bell-shaped housing; a purge component is provided in the device, and the purge component includes a propulsion plate and a purge part. Through the operation of the pop-up motor, the spiral rod can be ejected from the base, and through the torsion spring, the propulsion plate is moved forward, so that the propulsion plate can be located at the top of the tripod bearing and the bottom surface of the connecting shaft in the bell-shaped housing, and then the limiting motor starts working, and the connecting shaft in the bell-shaped housing can be rotated, so that the propulsion plate can process the impurities in the gap between the tripod bearing and the bell-shaped housing, and at the same time, through the provided purge part, the purge part includes at least three working modes, so that the purge work of the gap can be completed, and the impurity removal work can be completed, and negative pressure can be applied at the air inlet end, so that the impurities can be adsorbed and the impurity collection work can be completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a schematic diagram of an automated assembly device for a constant velocity drive shaft of the present invention;

[0038] Figure 2 It is a schematic diagram of the assembly unit structure of the present invention;

[0039] Figure 3 It is a schematic structural diagram of the purge assembly of the present invention;

[0040] Figure 4 It is a schematic structural diagram of the pressing assembly of the present invention;

[0041] Figure 5 is a schematic diagram of a purge assembly of the present invention;

[0042] Figure 6 It is a schematic structural diagram of the purge portion of the present invention;

[0043] Figure 7 It is a schematic structural diagram of the clamping unit of the present invention;

[0044] Figure 8 It is a structural schematic diagram of the dynamic performance testing equipment of the constant velocity drive shaft of the present invention;

[0045] Figure 9 is a schematic diagram of a source changing unit of the present invention;

[0046] Figure 10 It is a schematic structural diagram of the source changing unit of the present invention.

[0047] Reference numerals: 1, assembly table; 2, manipulator; 3, assembly unit; 31, adjustment assembly; 311, fixed seat; 312, adjustment motor; 313, bidirectional screw; 314, adjustment member; 315, adjustment seat; 316, limiting wheel; 317, slide rail; 318, slider; 319, limiting motor; 320, main gear; 321, rotating shaft; 322, driven wheel; 323, driven gear; 324, limiting seat; 32, pressing assembly; 3201 , support frame; 3202, lifting cylinder; 3203, mounting seat; 3204, lifting block; 3205, connecting plate; 3206, lifting frame; 3207, sleeve; 3208, guide shaft; 3209, guide block; 32010, rotating shaft; 32011, pressing block; 33, purge assembly; 331, base; 332, ejection motor; 333, screw rod; 334, torsion spring; 335, push plate; 336, purge unit; 3361, shell body; 3362, reversing motor; 3363, driving cam; 3364, driving block; 3365, first adjusting rod; 3366, sealing block; 3367, return spring; 3368, second adjusting rod; 3369, connecting spring; 33610, driving seat; 33611, sealing ball; 33612, air inlet end; 33613, air outlet end; 4, clamping unit; 41, clamping motor; 42, clamping seat; 43, limit rod; 44, first abutment Wheel; 45. movable wheel; 46. limit arm; 47. pull plate; 48. first sleeve; 49. second sleeve; 5. pressing mechanism; 6. torque detection device; 7. torque sensor; 8. source change unit; 81. detection seat; 82. output shaft; 83. driving gear; 84. limit shaft; 85. movable seat; 86. swing arm; 87. support block; 88. arc track; 89. locking rod; 810. movable gear; 9. first power source; 10. second power source. DETAILED DESCRIPTION

[0048] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0049] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0050] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive with other embodiments.

[0051] The present invention discloses an automatic assembly and dynamic performance testing device for a constant velocity drive shaft, referring to Figures 1-10 ,include:

[0052] The assembly table 1 is used to provide an assembly plane for the parts in the constant velocity drive shaft; the manipulator 2 is set on the assembly table 1 and is used to carry the bell shell and the cylindrical shell; the assembly unit 3 is located on the assembly table 1 and is used to assemble the tripod bearing in the bell shell; the clamping unit 4 is installed on the assembly table 1 and is used to clamp and limit the cylindrical shell; the pressing mechanism 5 is connected to the assembly table 1 and is used to press the bell shell into the cylindrical shell; the bell shell and the cylindrical shell are placed in the predetermined position by the different manipulators 2, and the three are assembled by the assembly unit 3. The fork bearing is assembled in the bell-shaped housing, and the assembled parts are placed in the cylindrical housing by the manipulator 2, and finally the installation of the bell-shaped housing and the cylindrical housing is completed by the pressing mechanism 5; the bell-shaped housing and the cylindrical housing are placed in a predetermined position by the manipulator 2, and then the assembly of the tripod bearing and the bell-shaped housing is completed by the cooperation between the oil injection unit and the assembly unit 3, and the assembled bell-shaped housing is placed in the cylindrical housing by the manipulator 2, and then the bell-shaped housing is pressed down by the pressing mechanism 5 to complete the assembly of the constant velocity drive shaft.

[0053] The assembly unit 3 includes an adjustment component 31 fixedly mounted on the assembly table 1, a plurality of pressing components 32 arranged on the adjustment component 31, and a purge component 33 symmetrically arranged on the adjustment component 31; the purge component 33 includes a base 331 fixedly connected to the adjustment component 31, a pop-up motor 332 fixedly connected to the base 331, a screw rod 333 connected to the output end of the pop-up motor 332, a push plate 335 slidably connected to the base 331, a torsion spring 334 for connecting the push plate 335 and one end of the screw rod 333, and a purge part 336 arranged on the screw rod 333; through the operation of the pop-up motor 332, the screw rod 333 is popped out of the base 331, the purge area of ​​the purge part 336 is adjusted, and the push plate 335 is pushed out so that the push plate 335 is located between the top of the tripod bearing and the lower surface of the top of the mounting shaft in the bell housing, which facilitates the installation of the retaining ring.

[0054] The adjustment assembly 31 includes a fixed seat 311 and a limit seat 324 fixedly mounted on the assembly table 1, an adjustment motor 312 fixedly mounted on the fixed seat 311, a bidirectional screw rod 313 connected to the output end of the adjustment motor 312, an adjustment member 314 sleeved on the bidirectional screw rod 313, a slide rail 317 fixedly mounted on the fixed seat 311, a slider 318 slidably connected to the slide rail 317, and an adjustment seat 315 for connecting the slider 318 and the adjustment member 314; the adjustment assembly 31 also includes a A plurality of limiting wheels 316 on one adjustment seat 315, a limiting motor 319 fixedly mounted on another adjustment seat 315, a main gear 320 connected to the output end of the limiting motor 319, a rotating shaft 321 provided on the other adjustment seat 315, at least two driven wheels 322 sleeved on the rotating shaft 321, and a driven gear 323 located between the two driven wheels 322 and sleeved on the rotating shaft 321; the main gear 320 is meshed with the driven gear 323; when the constant speed drive shaft needs to be assembled, at this time, The two manipulators 2 are set to complete the handling work of the bell shell and the cylindrical shell. When the bell shell is in a predetermined position, the adjusting motor 312 starts to work. The moving adjusting motor 312 can drive the bidirectional screw rod 313 to rotate, so that the adjusting members 314 can approach each other. At this time, the moving adjusting member 314 can adjust the seat 315 to move, so that the moving adjusting seat 315 can drive the limiting wheel 316 and the driven wheel 322 to move, so that the limiting wheel 316 and the driven wheel 322 can abut against the connecting shaft in the bell shell, completing the limiting work of the bell shell. Then the limit motor 319 starts to work, and the moving limit motor 319 can drive the main gear 320 to rotate, and then the moving main gear 320 can drive the driven gear 323 engaged with it to rotate, and the set rotating shaft 321 can drive the driven wheel 322 to rotate. Since the driven wheel 322 abuts the connecting shaft in the bell-shaped housing, it can drive the connecting shaft in the bell-shaped housing to rotate, so that the spline on the connecting shaft in the bell-shaped housing can adapt to the tripod bearing, ensuring that the tripod bearing can be smoothly installed on the connecting shaft in the bell-shaped housing.

[0055] The pressing assembly 32 includes a support frame 3201 and a lifting cylinder 3202 fixedly mounted on the assembly table 1, a mounting base 3203 for connecting the lifting cylinder 3202 and the support frame 3201, a lifting block 3204 arranged at the output end of the lifting cylinder 3202, a connecting plate 3205 connected to the lifting block 3204, a lifting frame 3206 connected to the connecting plate 3205 and sleeved on the support frame 3201, a rotating shaft 32010 and a sleeve 3207 connected to the lifting frame 3206, and a pressing block 3204 connected to the rotating shaft 32010. 2011, and a guide shaft 3208 arranged on the mounting seat 3203 and located in the sleeve 3207; a guide block 3209 is provided on the sleeve 3207, and a slide groove is provided on the circumference of the guide shaft 3208, and the guide block 3209 is located in the slide groove, and the slide groove is a Z-shaped structure; by moving the sleeve 3207 in the axial direction of the guide shaft 3208, the position of the guide block 3209 in the slide groove is changed, so that the pressing block 32011 can be moved closer to or away from the mounting seat 3203 while rotating; when the tripod bearing is being installed, the lifting cylinder 3202 is opened. When the lifting frame 3206 starts to work, the moving lifting cylinder 3202 can drive the lifting block 3204 to move, and the moving lifting block 3204 can drive the connecting plate 3205 to move, thereby driving the lifting frame 3206 to move in the length direction of the support frame 3201. A sleeve 3207 is set on the lifting frame 3206, and a guide block 3209 is provided on the lifting frame 3206. Therefore, when the lifting frame 3206 is lifting, the guide block 3209 can move in the Z-shaped slide groove, which can not only make the sleeve 3207 close to the mounting seat 3203 but also make the mounting seat 3203 It rotates, so that the pressing block 32011 can perform intermittent pressing work. At the same time, by setting a plurality of pressing components 32 to cooperate with each other, not only can the pressing work be completed, but also the tilted three-pronged bearing can be straightened (that is, the axis of the three-pronged bearing coincides with the axis of the connecting shaft in the bell-shaped shell); after the preliminary installation of the three-pronged bearing is completed by the manipulator 2, the setting of the pressing component 32 can not only complete the secondary installation of the three-pronged bearing, but also enable the three-pronged bearing to be installed in a predetermined manner, avoiding excessive misalignment and damage to the splines on the inner wall of the three-pronged bearing.

[0056] When completing the installation of the tripod bearing, in order to ensure that the tripod bearing and the connecting shaft in the bell housing can be stably connected, a certain gap needs to be left between the top of the tripod bearing and the lower surface of the top of the connecting shaft in the bell housing during installation. This gap is used to place the retaining spring. At the same time, most existing constant velocity drive shafts are reusable, which may cause impurities to be present in the splines on the tripod bearing or the connecting shaft in the bell housing. During assembly, a large amount of impurities will be present in the above gap (there will be impurities between each spline), which will cause the retaining spring to be unable to be installed smoothly, or to fail to achieve the tightening effect after installation, resulting in the tripod bearing being separated from the connecting shaft in the bell housing when the constant velocity drive shaft rotates.

[0057] In order to solve the above problems, the present device includes a purge part 336, which includes a shell 3361 fixedly mounted on the spiral rod 333, a reversing motor 3362 fixedly connected to the shell 3361, a driving cam 3363 arranged at the output end of the reversing motor 3362, a driving block 3364 located on the driving cam 3363, an air inlet end 33612 arranged on the shell 3361, an air outlet end 33613 mounted on the shell 3361, and a shut-off member for connecting the air outlet end 33613 and the air inlet end 33612; the shut-off member includes an H-shaped chamber opened in the shell 3361, a first adjusting rod 3365 and a A second adjusting rod 3368, a sealing block 3366 provided at one end of the first adjusting rod 3365, a return spring 3367 connected to the sealing block 3366, a connecting spring 3369 connected to the output end of the second adjusting rod 3368, a driving seat 33610 connected to the other end of the connecting spring 3369, and a sealing ball 33611 connected to the driving seat 33610; the other end of the return spring 3367 abuts against one of the air outlet ends 33613, the first adjusting rod 3365 can abut against the driving block 3364, and one end of the second adjusting rod 3368 can abut against the driving cam 3363; the H-shaped chamber is respectively connected to the air inlet end 33612 and the air outlet end 33613.

[0058] When the tripod bearing is being installed, the pop-up motor 332 starts working. The moving pop-up motor 332 can drive the screw rod 333 to rotate, so that the bolt rod can extend out of the base 331. During the extension of the screw rod 333, the torsion spring 334 is provided, which can drive the push plate 335 to move so that the front end of the push plate 335 can be located in the above-mentioned gap, thereby playing a supporting role. Then the purge part 336 can purge the gap to reduce impurities in the gap to ensure the smooth installation of the retaining spring. Then the adjustment assembly 31 starts working, thereby rotating the connecting shaft in the bell housing. The purge part 336 and the push plate 335 cooperate to clean the gap. After the purge work is completed, the retaining spring can be inserted into the above-mentioned gap through the retaining spring handling robot (existing technology). At this time, the pop-up motor 332 works in the reverse direction to move the push plate 335 away from the connecting shaft in the bell housing, thereby completing the entire cleaning process.

[0059] During the cleaning process, the air supply pipe is connected to the air inlet end 33612, and the reversing motor 3362 is operated to make the driving block 3364 abut against the first adjusting rod 3365 (at this time, the farthest end of the driving cam 3363 abuts against the second adjusting rod 3368), so that the sealing block 3366 is close to one of the air outlet ends 33613. At this time, the fluid can be ejected from one of the air outlet ends 33613 along the chamber, so that the designated location can be purged.

[0060] Then, the reversing motor 3362 operates again, and the distance between the sealing block 3366 and one of the air outlet ends 33613 is shortened again. The connecting spring 3369 drives the driving seat 33610 to move away from the other air outlet end 33613, thereby causing the sealing ball 33611 to move away from the air inlet of the other air outlet end 33613. At this time, the fluid can be ejected from both air outlet ends 33613.

[0061] Finally, the reversing motor 3362 continues to work. At this time, the sealing block 3366 blocks one of the air outlet ends 33613. Then, the distance between the sealing ball 33611 and the other air outlet end 33613 is the farthest. At this time, the fluid can pass through the chamber and be ejected from the other air outlet end 33613, thereby completing the purge of the tripod bearing.

[0062] Without changing the air volume, the pop-up motor 332 drives the screw rod 333 to rotate, and at the same time cooperates with the working mode of the blowing part 336. During the movement of the screw rod 333, the propulsion plate 335 can be pushed forward, and then when the propulsion plate 335 abuts against the tripod bearing, the screw rod 333 can be moved to change the blowing direction of the blowing part 336. When the propulsion plate 335 abuts against the tripod bearing, the working mode of the blowing part 336 can be changed to change the blowing direction of the blowing part 336, so as to complete the multi-angle and multi-wind force adjustment of the gap. By making the propulsion plate 335 located in the gap, the moving clock-shaped shell of the assembly unit 3 can be rotated, so that the propulsion plate 335 can remove impurities from the gap between the tripod bearing and the connecting shaft in the bell-shaped shell.

[0063] The clamping unit 4 includes a clamping seat 42 fixedly mounted on the assembly table 1, a clamping motor 41 fixedly connected to the clamping seat 42, a limiting rod 43 connected to the output end of the clamping motor 41, a first abutting wheel 44 provided at one end of the limiting rod 43, a limiting arm 46 movably connected to the clamping seat 42, two movable wheels 45 respectively provided on the limiting arms 46, two first sleeves 48 mounted on the limiting rod 43, a pulling plate 47 movably connected to the clamping seat 42, and a second sleeve 49 provided on the limiting arm 46; wherein the pulling plate 47 is provided with an arc hole and a waist-shaped hole, the first sleeve 48 is located in the arc hole, and the second sleeve 49 is located in the waist-shaped hole, and the length of the waist-shaped hole is greater than the diameter of the second sleeve 49; the limiting rod 43 is a cross-shaped structure, and its shoulder has a predetermined inclined surface, and one of the movable wheels 45 abuts against the inclined surface;

[0064] When the manipulator 2 places the cylindrical shell on the assembly table 1, the clamping motor 41 starts to work. The moving clamping motor 41 can drive the limiting rod 43 to start working. The moving limiting rod 43 can drive the first abutting wheel 44 to move. At the same time, during the movement of the limiting rod 43, the first sleeve 48 can also be driven to move, thereby changing the inclination angle between the pull plate 47 and the clamping seat 42. Since the second sleeve 49 is located in the pull plate 47, the limiting arm 46 can be driven to move during the movement of the pull plate 47, so that the movable wheel 45 and the first abutment wheel 44 are in abutment with the cylindrical shell to complete the limiting work of the cylindrical shell, and then the oiling work is completed by the oiling unit, so that the cylindrical shell is filled with lubricating oil. The structure of the oiling unit can be the same as the structure of the purging part 336, thereby completing the oiling work of the cylindrical shell. By setting the oiling unit with the same structure as the purging part 336, the oiling position can be adjusted to avoid excessive lubricating oil in one area of ​​the cylindrical shell, and to avoid excessive lubricating oil when the bell shell is inserted into the cylindrical shell, and the lubricating oil is squeezed out during the insertion process.

[0065] The dynamic performance testing equipment of the constant speed drive shaft includes a torque detection device 6, a first power source 9, a second power source 10 and a torque sensor 7 arranged on the torque detection device 6, and a source change unit 8 located on the torque detection device 6 and between the first power source 9, the second power source 10 and the torque sensor 7; it also includes a constant speed drive shaft, the torque detection device 6 is used for detecting the constant speed drive shaft; the source change unit 8 includes a detection seat 81 fixedly mounted on the torque detection device 6, a driving gear 83 respectively sleeved on the first power source 9 and the second power source 10, an output shaft 82 movably connected to the detection seat 81, an arc track 88 fixedly mounted on the detection seat 81, and a fixed A limit shaft 84 fixedly mounted on the detection seat 81, a movable seat 85 sleeved on the output shaft 82 and slidably connected to the detection seat 81, a swing arm 86 movably connected to the detection seat 81, a support block 87 fixedly mounted on the movable seat 85, and a locking rod 89 provided on the swing arm 86; a movable hole is opened on the swing arm 86, and the support block 87 is located in the movable hole; the movable seat 85 is connected to the output shaft 82 by a spline; a limit hole is provided on the arc track 88; a movable gear 810 is also sleeved on the movable seat 85, and the position of the movable gear 810 in the axial direction of the output shaft 82 is adjusted by the movement of the swing arm 86, so that it meshes with different drive gears 83 to complete torque detection;

[0066] When performing a performance test of the constant velocity drive shaft, the constant velocity drive shaft can be placed in the torque detection device 6, and then the first power source 9 starts working. The moving first power source 9 can drive the drive gear 83 to rotate. At this time, the drive gear 83 is engaged with the movable gear 810, thereby causing the output shaft 82 to rotate, thereby driving the constant velocity drive shaft to rotate. During this process, the torque sensor 7 is used to perform detection work. After completing the detection work of the power source, the locking rod 89 is adjusted so that the locking rod 89 is in one of the limit holes, and then the position of the swing arm 86 is adjusted so that the locking rod 89 on the swing arm 86 is located in the other limit hole. During the adjustment of the swing arm 86, the swing arm 86 can drive the movable seat 85 to move through the provided support block 87, so that the movable seat 85 can move on the detection seat 81, thereby changing the position of the movable gear 810, so that the movable gear 810 is engaged with the drive gear 83 on the second power source 10, and then the torque detection work of the constant velocity drive shaft is completed by the rotation of the second power source 10.

[0067] By making the rotation speed of the first power source 9 and the second power source 10 different, the torque difference of the assembled constant speed drive shaft at different speeds is detected. The device is provided with at least two power sources, which are switched by the source switching unit 8. Compared with the traditional torque measurement device with only one torque measurement device, the device has more measurement data, ensuring the accuracy of the measurement results.

[0068] The torque detection device 6 and the pressing mechanism 5 are prior art.

[0069] Working principle description: When the constant speed drive shaft needs to be assembled, the two manipulators 2 are used to complete the handling of the bell shell and the cylindrical shell. When the bell shell is in a predetermined position, the adjusting motor 312 starts to work. The moving adjusting motor 312 can drive the bidirectional screw rod 313 to rotate, so that the adjusting parts 314 can approach each other. At this time, the moving adjusting parts 314 can adjust the seat 315 to move, so that the moving adjusting seat 315 can drive the limiting wheel 316 and the driven wheel 322 to move, so that the limiting wheel 316 and the driven wheel 322 can be connected with the connection in the bell shell. The shaft abuts to complete the limiting work of the bell housing; then the limiting motor 319 starts to work, and the moving limiting motor 319 can drive the main gear 320 to rotate, and then the moving main gear 320 can drive the driven gear 323 meshing with it to rotate, and the provided rotating shaft 321 can drive the driven wheel 322 to rotate. Since the driven wheel 322 abuts against the connecting shaft in the bell housing, it can drive the connecting shaft in the bell housing to rotate, so that the spline on the connecting shaft in the bell housing can adapt to the tripod bearing, ensuring that the tripod bearing can be smoothly installed on the connecting shaft in the bell housing;

[0070] When the tripod bearing is being installed, the lifting cylinder 3202 starts to work. The moving lifting cylinder 3202 can drive the lifting block 3204 to move, and the moving lifting block 3204 can drive the connecting plate 3205 to move, thereby driving the lifting frame 3206 to move in the length direction of the support frame 3201. A sleeve 3207 is provided on the lifting frame 3206, and a guide block 3209 is provided on the lifting frame 3206. Therefore, when the lifting frame 3206 is lifting, the guide block 3209 can move in the Z-shaped slide groove, which can not only make the sleeve 3207 close to the mounting seat 3203 but also make the mounting seat 3203 rotate, thereby making the pressing block 32011 able to perform intermittent pressing work. At the same time, by setting a plurality of pressing assemblies 32 to cooperate with each other, not only the pressing work can be completed, but also the tilted tripod bearing can be straightened (that is, the axis of the tripod bearing coincides with the axis of the connecting shaft in the bell housing);

[0071] When the installation of the three-prong bearing is carried out, the pop-up motor 332 starts to work at this time, and the moving pop-up motor 332 can drive the screw rod 333 to rotate, so that the bolt rod can extend out of the base 331. In the process of extending the screw rod 333, the torsional spring 334 is arranged, which can drive the advancing plate 335 to move so that the front end of the advancing plate 335 can be located in the above-mentioned gap, thereby playing a supporting work. Then the blowing part 336 can blow the gap to reduce the impurities in the gap and ensure the smooth installation of the snap spring. Then the adjusting assembly 31 starts to work, thereby making the connecting shaft in the bell-shaped shell rotate. The cooperation of the blowing part 336 and the advancing plate 335 can clean the gap. After the blowing work is completed, the snap spring can be inserted into the above-mentioned gap by the snap spring handling manipulator. At this time, the pop-up motor 332 works in reverse, so that the advancing plate 335 moves away from the connecting shaft in the bell-shaped shell, thereby completing the whole cleaning process.

[0072] In the process of cleaning, the gas inlet end 33612 is connected with the gas inlet end 33612, and then the reversing motor 3362 starts to work, so that the driving block 3364 abuts against the first adjusting rod 3365 (at this time, the farthest end of the driving cam 3363 abuts against the second adjusting rod 3368), so that the sealing block 3366 approaches one of the gas outlet ends 33613. At this time, the fluid can be sprayed from one of the gas outlet ends 33613 along the chamber, thereby being able to blow the designated position,

[0073] Then the reversing motor 3362 works again, at this time the distance between the sealing block 3366 and one of the gas outlet ends 33613 is shortened again, and the connecting spring 3369 drives the driving seat 33610 to move away from the other gas outlet end 33613, so that the sealing ball 33611 moves away from the gas inlet of the other gas outlet end 33613. At this time, the fluid can be sprayed from the two gas outlet ends 33613;

[0074] Finally, the reversing motor 3362 continues to work, at this time the sealing block 3366 blocks one of the gas outlet ends 33613, and the distance between the sealing ball 33611 and the other gas outlet end 33613 is the farthest. At this time, the fluid can be sprayed from the other gas outlet end 33613 through the chamber, thereby completing the blowing work of the three-prong bearing;

[0075] When the manipulator 2 places the cylindrical shell on the assembly table 1, the clamping motor 41 starts to work, and the moving clamping motor 41 can drive the limiting rod 43 to start working. The moving limiting rod 43 can drive the first abutting wheel 44 to move. At the same time, during the movement of the limiting rod 43, it can also drive the first sleeve 48 to move, thereby changing the inclination angle between the pulling plate 47 and the clamping seat 42. Since the second sleeve 49 is located in the pulling plate 47, the pulling plate 47 can drive the limiting arm 46 to move during the movement of the pulling plate 47, so that the movable wheel 45 and the first abutting wheel 44 are in contact with the cylindrical shell, completing the limiting work of the cylindrical shell, and then completing the oiling work through the oiling unit, so that the cylindrical shell is filled with lubricating oil. The structure of the oiling unit can be the same as that of the blowing part 336, thereby completing the oiling work of the cylindrical shell;

[0076] When performing a performance test of the constant velocity drive shaft, the constant velocity drive shaft can be placed in the torque detection device 6, and then the first power source 9 starts working. The moving first power source 9 can drive the drive gear 83 to rotate. At this time, the drive gear 83 is engaged with the movable gear 810, thereby causing the output shaft 82 to rotate, thereby driving the constant velocity drive shaft to rotate. During this process, the torque sensor 7 is used to perform detection work. After completing the detection work of the power source, the locking rod 89 is adjusted so that the locking rod 89 is in one of the limit holes, and then the position of the swing arm 86 is adjusted so that the locking rod 89 on the swing arm 86 is located in the other limit hole. During the adjustment of the swing arm 86, the swing arm 86 can drive the movable seat 85 to move through the provided support block 87, so that the movable seat 85 can move on the detection seat 81, thereby changing the position of the movable gear 810, so that the movable gear 810 is engaged with the drive gear 83 on the second power source 10, and then the torque detection work of the constant velocity drive shaft is completed by the rotation of the second power source 10.

[0077] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. Automated assembly equipment for constant velocity drive shafts, characterized in that: include: An assembly table (1) is used to provide an assembly plane for components in a constant velocity drive shaft; A manipulator (2) is provided on the assembly platform (1) and is used for transporting the bell-shaped shell and the cylindrical shell; An assembly unit (3), located on the assembly platform (1), is used to assemble the tripod bearing in the bell housing; A clamping unit (4) is mounted on the assembly platform (1) and is used to clamp and limit the cylindrical shell; A pressing mechanism (5) connected to the assembly platform (1) and used to press the bell-shaped housing into the cylindrical housing; The bell-shaped housing and the cylindrical housing are placed at predetermined positions by different manipulators (2), the tripod bearing is assembled in the bell-shaped housing by the assembly unit (3), and the assembled components are placed in the cylindrical housing by the manipulator (2), and finally the installation of the bell-shaped housing and the cylindrical housing is completed by the pressing mechanism (5).

2. The automated assembly equipment for a constant velocity drive shaft according to claim 1, characterized in that: The assembly unit (3) comprises an adjustment component (31) fixedly mounted on the assembly platform (1), a plurality of pressing components (32) arranged on the adjustment component (31), and a purge component (33) symmetrically arranged on the adjustment component (31); The purge assembly (33) comprises a base (331) fixedly connected to the adjustment assembly (31), a pop-up motor (332) fixedly connected to the base (331), a screw rod (333) connected to the output end of the pop-up motor (332), a propulsion plate (335) slidably connected to the base (331), a torsion spring (334) for connecting the propulsion plate (335) and one end of the screw rod (333), and a purge portion (336) provided on the screw rod (333); By operating the ejection motor (332), the screw rod (333) is ejected from the base (331), the purge area of ​​the purge portion (336) is adjusted, and the push plate (335) is pushed out so that the push plate (335) is located between the top of the tripod bearing and the lower surface of the top of the mounting shaft in the bell housing, thereby facilitating the installation of the retaining spring.

3. The automated assembly equipment for a constant velocity drive shaft according to claim 2, characterized in that: The adjustment assembly (31) comprises a fixed seat (311) and a limit seat (324) fixedly mounted on the assembly platform (1), an adjustment motor (312) fixedly mounted on the fixed seat (311), a bidirectional screw rod (313) connected to the output end of the adjustment motor (312), an adjustment member (314) sleeved on the bidirectional screw rod (313), a slide rail (317) fixedly mounted on the fixed seat (311), a slider (318) slidably connected to the slide rail (317), and an adjustment seat (315) for connecting the slider (318) and the adjustment member (314).

4. The automated assembly equipment for a constant velocity drive shaft according to claim 3, characterized in that: The adjustment assembly (31) further includes a plurality of limiting wheels (316) arranged on one of the adjustment seats (315), a limiting motor (319) fixedly mounted on the other adjustment seat (315), a main gear (320) connected to the output end of the limiting motor (319), a rotating shaft (321) arranged on the other adjustment seat (315), at least two driven wheels (322) sleeved on the rotating shaft (321), and a driven gear (323) located between the two driven wheels (322) and sleeved on the rotating shaft (321); The main gear (320) is meshed with the driven gear (323).

5. The automated assembly equipment for a constant velocity drive shaft according to claim 4, characterized in that: The pressing assembly (32) comprises a support frame (3201) and a lifting cylinder (3202) fixedly mounted on the assembly platform (1), a mounting seat (3203) for connecting the lifting cylinder (3202) and the support frame (3201), a lifting block (3204) arranged at the output end of the lifting cylinder (3202), a connecting plate (3205) connected to the lifting block (3204), a lifting frame (3206) connected to the connecting plate (3205) and sleeved on the support frame (3201), a rotating shaft (32010) and a sleeve (3207) connected to the lifting frame (3206), a pressing block (32011) connected to the rotating shaft (32010), and a guide shaft (3208) arranged on the mounting seat (3203) and located in the sleeve (3207); The sleeve (3207) is provided with a guide block (3209), the guide shaft (3208) is provided with a sliding groove in the circumferential direction, the guide block (3209) is located in the sliding groove, and the sliding groove is a Z-shaped structure; By moving the sleeve (3207) axially along the guide shaft (3208), the position of the guide block (3209) in the slide groove is changed, so that the pressing block (32011) can move closer to or away from the mounting seat (3203) while rotating.

6. The automated assembly equipment for a constant velocity drive shaft according to claim 5, characterized in that: The purge portion (336) includes a housing (3361) fixedly mounted on the screw rod (333), a reversing motor (3362) fixedly connected to the housing (3361), a driving cam (3363) arranged at the output end of the reversing motor (3362), a driving block (3364) located on the driving cam (3363), an air inlet (33612) arranged on the housing (3361), an air outlet (33613) mounted on the housing (3361), and a shut-off member for connecting the air outlet (33613) and the air inlet (33612).

7. The automated assembly equipment for a constant velocity drive shaft according to claim 6, characterized in that: The shut-off member comprises an H-shaped chamber provided in the housing (3361), a first adjusting rod (3365) and a second adjusting rod (3368) located in the H-shaped chamber, a sealing block (3366) provided at one end of the first adjusting rod (3365), a return spring (3367) connected to the sealing block (3366), a connecting spring (3369) connected to the output end of the second adjusting rod (3368), a driving seat (33610) connected to the other end of the connecting spring (3369), and a sealing ball (33611) connected to the driving seat (33610); The other end of the return spring (3367) is in contact with one of the air outlet ends (33613), the first adjustment rod (3365) is capable of abutting against the driving block (3364), and one end of the second adjustment rod (3368) is capable of abutting against the driving cam (3363); The H-shaped chamber is communicated with the air inlet end (33612) and the air outlet end (33613) respectively.

8. The automated assembly equipment for a constant velocity drive shaft according to claim 1, characterized in that: The clamping unit (4) includes a clamping seat (42) fixedly mounted on the assembly table (1), a clamping motor (41) fixedly connected to the clamping seat (42), a limiting rod (43) connected to the output end of the clamping motor (41), a first abutting wheel (44) arranged at one end of the limiting rod (43), a limiting arm (46) movably connected to the clamping seat (42), two movable wheels (45) respectively arranged on the limiting arm (46), two first sleeves (48) mounted on the limiting rod (43), a pulling plate (47) movably connected to the clamping seat (42), and a second sleeve (49) arranged on the limiting arm (46); The pull plate (47) is provided with an arc-shaped hole and a waist-shaped hole, the first sleeve (48) is located in the arc-shaped hole, the second sleeve (49) is located in the waist-shaped hole, and the length of the waist-shaped hole is greater than the diameter of the second sleeve (49); The limiting rod (43) is a cross-shaped structure, and its shoulder has a predetermined inclined surface, and one of the movable wheels (45) abuts against the inclined surface.

9. Dynamic performance testing equipment for constant velocity drive shaft, characterized in that: The invention comprises a torque detection device (6), a first power source (9), a second power source (10) and a torque sensor (7) arranged on the torque detection device (6), and a source change unit (8) located on the torque detection device (6) and between the first power source (9), the second power source (10) and the torque sensor (7); It also includes a constant velocity drive shaft assembled by the automatic assembly equipment of the constant velocity drive shaft as described in any one of claims 1 to 8, wherein the torque detection device (6) is used for detecting the constant velocity drive shaft.

10. The dynamic performance testing device for a constant velocity drive shaft according to claim 9, characterized in that: The source changing unit (8) comprises a detection seat (81) fixedly mounted on the torque detecting device (6), a driving gear (83) respectively mounted on the first power source (9) and the second power source (10), an output shaft (82) movably connected to the detection seat (81), an arc track (88) fixedly mounted on the detection seat (81), a limit shaft (84) fixedly mounted on the detection seat (81), a movable seat (85) mounted on the output shaft (82) and slidably connected to the detection seat (81), a swing arm (86) movably connected to the detection seat (81), a support block (87) fixedly mounted on the movable seat (85), and a locking rod (89) provided on the swing arm (86); A movable hole is provided on the swing arm (86), and the support block (87) is located in the movable hole; The movable seat (85) is connected to the output shaft (82) via a spline; a limiting hole is provided on the arc track (88); The movable seat (85) is also provided with a movable gear (810). The position of the movable gear (810) in the axial direction of the output shaft (82) is adjusted by the movement of the swing arm (86), so that the movable gear (810) is engaged with different driving gears (83) to complete torque detection.

Images